If you partake in any activity that involves gripping and twisting of the forearm… this can cause this type of strain… So in many instances these strains aren’t essentially related to tennis or any kind of exercise.

Golfer’s elbow is a similar condition that affects the inside of the elbow joint near the funny bone.

Tennis players generally incur these symptoms from either:

incorrect technique (so many beginners experience this because they fight the ball instead of learning the correct way to hit a ball)

overuse (repetitive actions)

playing with tennis balls that are the wrong compression (too wet, too light, too heavy)

playing with metal racquets (these racquets are big cause of injury)

or the wrong weighted racquets (especially... too light or even too heavy)

Tennis Elbow symptoms?

Tennis elbow symptoms may vary… it could be you have slight discomfort when you move your arm, or to the point where the pain is so bad that it could even disturb your sleep.

You may well see and feel a slight swelling around the outside of your elbow and it will feel quite tender to touch. You might also experience pain further down your forearm.

You will find repetitive movements of the wrist will make the pain worse, especially if combined with a weight, for example if you’re lifting boxes or swinging a tennis racquet.

How to Treat Tennis Elbow with Simple ExercisesFrom Arthritis Research UK